Improvement in cements for coating and protecting wood



HENRY M. WESTMAN, OF EAST BOSTON, MASSACHUSETTS.

. Letters Patefit No. 108,661, dated October 25, 1870.

' IMPROVEMENT m CEMENTS FOR com-me AND PROTECTING wooo.

The Sphedule referred to in these Letters Patent end making part ofthe same.

To all whom it may concern:

Be it known that I, HENRY M. \VI-ISTMAN, of East Boston, in the county of Suifolk and State of Massachusetts, have invented a new andjuset'ul-Iinprovement in Tar-Cement; and I do hereby declare that'rthe following is a full, clear, and exact description thereof, which will enable others skilled in the art, to-make and use the same. t

The nature of this invention consists in mixing the ingredients hereinafter-named for forming a cement for coating wood, metal, and other substances, for protecting such substances from injury from the effects of the weather, water, insects, worms, 85c.

To prepare the cement, I take one quart of pinetar; onc'quart of tar-oil; three pounds of red lead;

one-half pound of tallow; one pound of. rosin; one I pound of arsenic;'one-half pound of sulphur; one quart of naphtha-oil.

. llIodeof Preparation.

Mix the red lead, tar, and tar-oil together; melt the tallow and rosin, and'addthe sulphur while warm. The composition is liquefied thoroughly by, heat, and then strained. Then add thenaphtha-oil and arsenic.

This ,cementprotects wood and metalio surfaces (whether exposed to air or water) from. oztidation,in-

sects, and worms; prevents ships bottoms from fonl-' ing, and is applicable to agreat variety of purposes.

Having thus described niy invention, '1 I claim as new and desire to secure hy Letters 1atent- I The compound or preparation, denominated tarceinent, of the ingredients, in the proportions, and for the purposes set forth. p \Vitnesses: HENRY M. \VESTMAN.

JAMES Now, I JAMES M. Norm. 

